Stage 07: Extruder

Extruder Spring

Drive Gear

Idler Arm

Back Plate

Coupling Mount

Fix the back plate to the motor face.

M3 x 6mm bolt

Match the orientation of the motors connector.

Fix the coupling mount to the face of the motor.

Coupling mount

M3 x 16mm bolt

Align the drive gear so that it runs with the filaments path.

Filament path

Fix the Drive Gear to the shaft of the motor.

Tighten the set screw onto the flat of the shaft. Tighten firmly.

Take the Idler arm and attach it to the assembly.

Idler arm

Extruder Spring

M3 x 16mm bolt

Put the spring in place and hold the arm in position before dropping in the M3 x 16mm bolt.

Do not over tighten, the arm should still be able to swivel when pressure is applied.

Remove from the back of the extruder motor three of the bolts.

Take three M3 x 40mm bolts and slide onto each of them an M3x2mm spacer.

M3 x 40mm bolt

M3 x 2mm spacer

Fix these bolts onto the spool holder and fasten them into the back of the extruder motor, where the three bolts were removed in the previous step.

Spool Holder

M3 x 40mm bolt and spacer

Match the orientation of the spool holder shown.

Create the spool holder arm:

M5 x 100mm bolt

M5 penny washer

M5 nyloc nut

Approx 1CM

Fix the arm onto the spool holder bracket with another M5 nyloc nut.

Make sure that it is on the same side as the extruder.

Mount the Extruder assembly onto the left the of the Z-pillar.

M4 x 10mm bolt

M4 nyloc nut

Insert one end of the PTFE tubing to the extruder.

Insert the other end into the Hotend.

Make sure that it is fed all the way to the bottom of the hotend, this should be approximately 6CM.

Double check, as running filament through the hotend with the PTFE tube not all the way down will clog the Hotend.

If your hotend does get clogged you will have to disassemble it to remove the clogged plastic from the hotend throat.